I've just fitted an Autometer boost gauge on my Z20LET coupe.
I noticed that boost suffers from an annoying hesitation when accelerating hard.
The turbo boosts to 15psi, hesitates half a sec, then overboosts to 20psi and decrease back to 15psi, in 3rd 4th or 5th gear of course.
I'm pleased by the 20psi overboost and 15psi hold, but I'm just wondering if this hesitation before the overboost is a normal thing or not.
BTW, I'm running EDS phase 2 with 9ltr intercooler, derestricted airbox and k&n panel filter, stainless steel powerpipe with no "DV out", precat and sportscat from courtenay and bastuck "no middle silencer" exhaust !
Thank you !